Shoppers at Wellcome supermarkets will be given a free $20 Mark Six ticket today if they spend $300 on groceries. About 20,000 computer-generated tickets will be given out. The Mark Six Lunar New Year Snowball draw on Tuesday has a snowball bonus of $38 million. If there is only one winning ticket, the first prize will be a record $60 million. Douglas Brown, Wellcome's marketing director, said the offer was a good luck gesture for the Year of the Goat.